![American Shoal Light. Image copied from [1]. From U. S. Coast Guard archives - no photo number/caption/date; photographer unknown. May have been taken before Co](https://upload.wikimedia.org/wikipedia/commons/0/00/Americanshoal.JPG)
Located in Monroe County, Florida, American Shoal Light is a lighthouse. It sits roughly 16.3 km (10.1 mi) ESE of Big Coppitt Key. Its recorded tower height is about 34 m (112 ft). It dates from 1880. It is listed on the National Register of Historic Places.
The American Shoal Light is located east of the Saddlebunch Keys, just off Sugarloaf Key, close to Looe Key, in Florida, United States. It was completed in 1880, and first lit on July 15, 1880. The structure was built to the same plan and dimensions as the Fowey Rocks lighthouse, completed in 1878.From the Wikipedia article “American Shoal Light”, licensed under CC BY-SA 4.0.
Sunrise & sunset directions
At American Shoal Light the sunrise point swings a long way through the year: about 64° (ENE) at the June solstice and 116° (ESE) in late December. Sunset moves from 296° (WNW) in June to 245° (WSW) in December, and the midday sun climbs to 89° in summer but only 42° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:31 AM | 90° E | 7:38 PM | 270° W | 65° | 12h 07m |
| June solstice (Jun 21) | 6:39 AM | 64° ENE | 8:18 PM | 296° WNW | 89° | 13h 39m |
| September equinox (Sep 22) | 7:15 AM | 89° E | 7:24 PM | 271° W | 66° | 12h 08m |
| December solstice (Dec 21) | 7:07 AM | 116° ESE | 5:43 PM | 245° WSW | 42° | 10h 37m |
Azimuth is measured clockwise from true north (90° = east, 270° = west). Computed for 2026; values change by less than a degree from year to year.
Golden hour & blue hour by month
Lighthouses work at both ends of the day: blue hour when the beacon is lit, and golden hour when white towers take on warm tones.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:48 AM | 7:13 AM | 7:46 AM | 5:26 PM | 5:59 PM | 6:24 PM | 10h 47m |
| February | 6:38 AM | 7:01 AM | 7:32 AM | 5:50 PM | 6:21 PM | 6:45 PM | 11h 21m |
| March | 7:13 AM | 7:36 AM | 8:06 AM | 7:06 PM | 7:36 PM | 7:58 PM | 12h 00m |
| April | 6:42 AM | 7:05 AM | 7:35 AM | 7:18 PM | 7:49 PM | 8:12 PM | 12h 44m |
| May | 6:19 AM | 6:43 AM | 7:15 AM | 7:31 PM | 8:03 PM | 8:28 PM | 13h 20m |
| June | 6:12 AM | 6:38 AM | 7:11 AM | 7:44 PM | 8:17 PM | 8:42 PM | 13h 39m |
| July | 6:22 AM | 6:47 AM | 7:20 AM | 7:46 PM | 8:18 PM | 8:43 PM | 13h 31m |
| August | 6:38 AM | 7:02 AM | 7:33 AM | 7:30 PM | 8:01 PM | 8:25 PM | 13h 00m |
| September | 6:50 AM | 7:13 AM | 7:43 AM | 7:01 PM | 7:31 PM | 7:54 PM | 12h 18m |
| October | 7:02 AM | 7:25 AM | 7:55 AM | 6:30 PM | 7:00 PM | 7:23 PM | 11h 36m |
| November | 6:19 AM | 6:43 AM | 7:15 AM | 5:08 PM | 5:40 PM | 6:04 PM | 10h 58m |
| December | 6:38 AM | 7:03 AM | 7:37 AM | 5:07 PM | 5:41 PM | 6:06 PM | 10h 38m |
Local time (America/New York), including daylight saving time. Golden hour runs from about −4° to +6° solar altitude, so the morning golden hour begins during blue hour, before sunrise.
Milky Way & night sky
From American Shoal Light, the Milky Way core is visible in a dark sky from February through October. June gives the longest window (about 7.3 hours on a moonless night), and the core peaks around 37° above the southern horizon. Our light-pollution model puts the sky at about Bortle 2 (typical truly dark site), which is excellent for astrophotography.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | 4° | — |
| February | 4:28 AM – 5:38 AM | 1.2 | 23° | SE → SE |
| March | 3:31 AM – 6:11 AM | 2.7 | 33° | SE → SSE |
| April | 1:37 AM – 5:37 AM | 4.0 | 37° | SE → S |
| May | 11:37 PM – 5:17 AM | 5.7 | 37° | SE → SSW |
| June | 9:45 PM – 5:05 AM | 7.3 | 37° | SE → SW |
| July | 9:45 PM – 3:35 AM | 5.8 | 37° | SSE → SW |
| August | 9:22 PM – 1:42 AM | 4.3 | 37° | S → SW |
| September | 8:48 PM – 11:38 PM | 2.8 | 34° | SSW → SW |
| October | 8:16 PM – 9:36 PM | 1.3 | 24° | SW → SW |
| November | Below 10° in darkness | — | 7° | — |
| December | Below 10° in darkness | — | -17° | — |
Window when the galactic core is at least 10° high during astronomical darkness on the 15th of each month. Pick nights within a few days of the new moon. Plan exact nights with the Milky Way planner.
Estimated sky darkness: 2 Bortle 2 — Typical truly dark site. The summer Milky Way shows rich structure; clouds look like black holes in the stars. Modeled zenith brightness ≈ 21.74 mag/arcsec².
Weather & best season
Long-term NASA satellite data for this area show April as the clearest month (about 37% average cloud cover) and September as the cloudiest (62%). August is the warmest month and January the coldest, which matters for gear, snow access and how long batteries last at night.
Average cloud cover (%)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 80 | 80 | 82 | 85 | 85 | 88 | 88 | 89 | 88 | 86 | 84 | 81 |
| Low °F | 50 | 53 | 59 | 64 | 72 | 77 | 79 | 80 | 76 | 66 | 64 | 54 |
| Precip. (in) | 1.0 | 1.4 | 1.0 | 1.9 | 3.9 | 6.1 | 5.0 | 5.9 | 6.7 | 4.2 | 2.0 | 1.3 |
Monthly climatology for the surrounding 1° grid cell from NASA POWER (MERRA-2). Mountain sites can be colder and cloudier than the cell average.
Photography tips for this lighthouse
- During blue hour, use 5–15 second exposures to capture the beam; check whether the light is still active.
- Shoot from the beach or a jetty to place the tower against open sky and sea.
- Stormy weather and crashing surf add drama; keep a safe distance from waves on rocks and piers.
- A telephoto from across a bay compresses the tower against cliffs or the moon.
- Bring a spare battery — cold weather and long exposures drain them fast.
Season: Summer brings open towers and tours; autumn and winter offer storms, fewer crowds and lower sun angles.
Suggested gear: Tripod, Telephoto lens, ND filter for smooth water, Rain cover. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Tides
The nearest NOAA tide prediction station is Key Lois, southeast end, 10.4 km (6.4 mi) away. Low tide often reveals tide pools, wet-sand reflections and sea stacks.
Nearby photo spots
Other locations within 25 km of American Shoal Light, closest first.
Ghost Town
National Wildlife Refuge
Botanical GardenFAQ
When is the best time to photograph American Shoal Light?
What time is golden hour at American Shoal Light?
Where does the sun rise and set at American Shoal Light?
Can you see the Milky Way from American Shoal Light?
Do you need a permit to photograph at American Shoal Light?
How far is American Shoal Light from Big Coppitt Key?
Sources
Location data: Wikidata, USGS GNIS / GeoNames, Wikipedia. Sun, moon and Milky Way times are computed by LWPhoto Atlas for 2026. Climate: NASA POWER. Sky darkness is a population-based estimate (Walker's law), not a measurement. See data sources & licenses.